Company of Heroes Online was a free MMO real-time strategy computer game developed by Relic Entertainment and published by THQ. The open beta for the game started on 2 September 2010, and the game was cancelled on 31 March 2011. The game has no link with the original Company of Heroes series multi-player system and is a stand alone game, unlike its predecessors. The game uses the same graphics engine as the retail release of Company of Heroes. Relic also released a Chinese and a South Korean version of the game. The Chinese version was co-developed and published by Shanda while the South Korean version was published by WindySoft and developed entirely by Relic Entertainment. The Korean and American versions featured the entire single player campaign from the retail release while the Chinese version did not.GameplayCompany of Heroes Online was a real time strategy game which was based on the retail game "Company of Heroes". Company of Heroes Online gameplay placed emphasis on usage of varying degrees of cover which together with a destructible terrain. Another departure from mainstream RTS's was the implementation of sector supply whereby the resource income of a player is linked to the sectors under that player's control. A unique feature of COHO was the bewildering amount of combination of hero units, special abilities and doctrinal abilities a player could utilize, giving the potential for very diverse yet equally effective strategies emphasising on creativity.